Modification and Performance Analysis on a Magnetoelectric Laminate Based High Current Sensor
Lu Shihua, Yu Xinjie, Lou Guofeng
State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing 100084 China
In this paper，we make parameter optimization and modification on an existing magnetoelectric laminate based high current sensor.Through optimizing the design of magnetic circuit，resetting the DC bias magnetic field and expanding the air gap in the ferrite magnetic circular，we have solved the problem of waveform distortion on the sensor，so that it can provide non distorted voltage output whose amplitude has a linear relationship with the current input.The experiment results illustrate that the sensor obtains an electric current sensitivity of 4.5 mV/A within 700 A，holds a stable output voltage over a frequency range of 40～1 500 Hz，and shows good anti interference ability.
卢诗华,于歆杰,楼国锋. 磁电层合大电流传感器的改进和性能分析[J]. 电工技术学报, 2017, 32(19): 90-99.
Lu Shihua, Yu Xinjie, Lou Guofeng. Modification and Performance Analysis on a Magnetoelectric Laminate Based High Current Sensor. Transactions of China Electrotechnical Society, 2017, 32(19): 90-99.
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2017, Vol. 32 
